A luggage with convenient turnover
By using the linkage and locking structure of the transmission plate, hinge rod, and sliding rod, the problem of inconvenient operation of luggage wheels in narrow spaces and the space occupied after storage is solved, thus achieving convenient storage and improved stability of luggage wheels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI MEILV TRAVEL PRODUCTS CO LTD
- Filing Date
- 2025-09-25
- Publication Date
- 2026-07-21
Smart Images
Figure CN224522552U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of luggage technology, specifically to a luggage with wheels that facilitate flipping. Background Technology
[0002] With the booming development of the tourism industry and the increase in people's travel frequency, the functionality and convenience of suitcases, as an essential portable storage tool, are receiving more and more attention. Modern consumers not only require suitcases to have sufficient storage space, but also have higher expectations for details such as mobility and comfort. For example, they want to reduce the area occupied when storing in narrow spaces and ensure stability and smoothness when pushing. These demands drive the continuous innovation of suitcase wheel structures.
[0003] A search revealed that Chinese Patent CN221382736U discloses a bag with convenient flipping wheels, including a bag body. The inner wall of the bottom of the bag body is provided with multiple sets of toothed racks. A sliding rod is slidably connected to the inner wall of the bag body. Two sets of fixing blocks are fixedly connected to the surface of the sliding rod. A fixing rod is fixedly connected to the inner wall of the bottom of the bag body. A fixing post is fixedly connected to the bottom of the outer wall of the fixing block. A limiting mechanism is provided on the inner wall of the sliding rod, including a pull rod. The pull rod is elastically connected to the inner wall of the sliding rod by a limiting spring. A limiting block is fixedly connected to the surface of the pull rod. In this invention, the movement of the pull rod drives the sliding rod to move within the arc-shaped groove of the bag body, thereby causing the two sets of fixing blocks on its surface to drive two sets of moving wheels to flip synchronously. The limiting blocks can fix the moving wheels in the position where they are flipped for storage or unfolded for use.
[0004] However, the CN221382736U patent has shortcomings in practical use: the operation of its rotating adjustment shaft requires the user to bend over, which is extremely inconvenient in narrow spaces such as crowded cars and elevators. At the same time, the wheels on both sides still protrude from the surface of the box after being stored, which not only fails to completely solve the problem of occupying space, but may also collide with other items when stored, affecting the user experience. Therefore, a bag with convenient flipping wheels is proposed. Utility Model Content
[0005] Therefore, the purpose of this utility model is to provide a bag with convenient flipping wheels to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a bag with convenient flipping wheels, comprising a bag body, a push-pull groove on one side of the bag body, and a locking hole in the push-pull groove, a transmission plate slidably installed on the inner wall of the bag body, and a fixing block fixedly installed on the top of the transmission plate, the fixing block slidably installed in the push-pull groove, and a locking structure slidably installed in the fixing block for cooperating with the locking hole; A hinge rod is rotatably mounted on the bottom end of the transmission plate, and a fixed rod is rotatably connected to the end of the hinge rod away from the transmission plate. A luggage wheel is mounted on the bottom end of the fixed rod. A sliding rod is fixedly mounted on the end of the hinge rod adjacent to the fixed rod, which is used to drive the fixed rod on the other side to move synchronously. A groove corresponding to the sliding rod is opened at the bottom of the box body. A storage groove is opened at the bottom of the box body for storing the luggage wheel.
[0007] By adopting the above technical solution, one end of the fixing block extends through the push-pull groove to the outside of the box, making it convenient for the user to push by hand, while the other end is rigidly connected to the transmission plate, ensuring that the fixed block can drive the transmission plate to slide synchronously when it moves. The transmission plate is linked to the rotation transmission of the hinge rod, the synchronous linkage of the sliding rod, and the guiding constraint of the sliding groove, which realizes the stable flipping and storage of the luggage wheels, ensuring that the wheels on both sides move in unison, improving the convenience of operation and the reliability of the structure. A storage groove is provided at the bottom of the box for storing the luggage wheels.
[0008] Furthermore, the locking structure includes a handle, a pin, and a spring. The handle is rotatably connected to the side of the fixed block. One end of the pin is fixedly installed on the end of the handle and slidably installed on the inner wall of the fixed block. The diameter of the other end of the pin is larger than the diameter of the end adjacent to the handle, which is used to limit the pin. The spring is sleeved on the outer wall of the pin, and both ends of the spring abut against the inner wall of the fixed block and the limiting protrusion of the pin, respectively.
[0009] By adopting the above technical solution, when the fixed block moves to the top or bottom of the push-pull groove, the pin rod automatically extends into the corresponding locking hole under the elastic force of the spring, locking the fixed block relative to the housing; when it is necessary to move the fixed block, the pin rod is compressed by flipping the handle and disengaged from the locking hole, releasing the locked state. At this time, pushing the fixed block can drive the transmission plate to slide along the inner wall of the housing, thereby realizing the linkage action of subsequent components.
[0010] Furthermore, the locking holes are provided in two sets in the push-pull groove, and are located at the top and bottom of the push-pull groove respectively.
[0011] By adopting the above technical solution, the two sets of locking holes correspond to the initial position and the storage position of the fixing block, respectively, for the unfolding and storage of the luggage wheels. By cooperating with the locking structure, the fixing block can be stably locked in these two key positions, avoiding accidental sliding of the fixing block due to external forces such as bumps and collisions, and ensuring the stability of the luggage wheels in use or storage.
[0012] Furthermore, the fixing rods are provided in four sets and are symmetrically distributed on both sides of the box.
[0013] By adopting the above technical solution, the linkage structure of the transmission plate, hinge rod and sliding rod forms a unified transmission system. The symmetrical distribution ensures that the force paths on both sides are completely consistent, so that all fixed rods can complete the flipping action synchronously, thereby avoiding messy storage or unbalanced support caused by the delay of action on one side.
[0014] Furthermore, the hinge rod is initially designed to be inclined, and hinge rods are rotatably installed on both sides of the transmission plate to synchronously drive the fixed rod, and the hinge rods on both sides of the transmission plate are symmetrically distributed.
[0015] By adopting the above technical solution, the initial tilt angle enables the vertical movement of the transmission plate to be converted into the flipping torque of the fixed rod more efficiently, thereby ensuring that a small operating force can drive the luggage wheels to complete the storage or unfolding, thus reducing the difficulty of operation.
[0016] In summary, the present invention has the following main advantages: This invention utilizes a two-step operation involving flipping the handle and pushing the fixing block, allowing users to retract the luggage wheels without bending over or performing complex operations. Simply operate the side locking structure of the luggage body to retract the wheels. To retract, first flip the handle upwards 90° for quick unlocking, then the fixing block moves downwards in conjunction with the retraction. The process is clear and easy to complete in scenarios such as inside a vehicle or in narrow passageways, eliminating the inconvenience of traditional bending-over unlocking. Utilizing the mechanical linkage of the transmission plate, hinge rod, and sliding rod, single-side operation can simultaneously drive the posture transformation of four sets of fixing rods, achieving synchronized retraction of both sides of the luggage wheels. Compared to scattered operation or single-wheel control, this significantly reduces retraction time, and the multi-rod collaboration ensures the wheels retract smoothly. Consistent storage design prevents one-sided protrusion from affecting storage. After storage, the fixing rod is parallel to the case body, and the wheels are fully retracted into the storage slot, making the overall shape of the bag more regular and effectively compressing the space occupied. This facilitates compact storage in scenarios such as luggage racks and narrow cabinets, improving space adaptability. The locking structure, composed of springs and pins, provides reliable limiting in the initial state and automatically resets and locks after storage, ensuring the stability of the fixing block and the wheels. In multi-rod linkage, the guide of the sliding rod by the slide groove and the rotation constraint of the hinge rod around the transmission rod prevent component displacement deviation, improve the overall structure's resistance to bumps and external interference, and extend the service life of the bag. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the entire utility model; Figure 2 This is a three-dimensional structural diagram of the present invention after being cut apart; Figure 3 This is a three-dimensional schematic diagram of the transmission structure of this utility model; Figure 4 This is a cross-sectional view of the present invention in its stored state; Figure 5This utility model Figure 4 Enlarged view of point A.
[0018] In the diagram: 1. Case body; 11. Sliding groove; 12. Locking hole; 13. Slide groove; 14. Storage groove; 2. Handle; 21. Pin rod; 22. Spring; 3. Transmission plate; 31. Fixing block; 32. Hinge rod; 33. Sliding rod; 34. Fixing rod; 4. Case wheels. Detailed Implementation
[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0020] The embodiments of this utility model will be described below based on its overall structure.
[0021] Example 1 A type of bag with wheels for easy flipping, such as... Figure 1-5 As shown, the device includes a housing 1. A push-pull groove 11 is provided on one side of the housing 1. The push-pull groove 11 is elongated and extends along the height direction of the housing 1. A locking hole 12 is provided in the push-pull groove 11. The locking hole 12 is a circular through hole. A transmission plate 3 is slidably installed on the inner wall of the housing 1. A fixing block 31 is fixedly installed on the top of the transmission plate 3. The fixing block 31 is slidably installed in the push-pull groove 11. One end of the fixing block 31 extends through the push-pull groove 11 to the outside of the housing 1, which is convenient for the user to push by hand. The other end is rigidly connected to the transmission plate 3 to ensure that the transmission plate 3 can slide synchronously when the fixing block 31 moves. A locking structure is slidably installed in the fixing block 31 to cooperate with the locking hole 12. A hinge rod 32 is rotatably mounted on the bottom end of the transmission plate 3, and a fixed rod 34 is rotatably connected to the end of the hinge rod 32 away from the transmission plate 3. A luggage wheel 4 is mounted on the bottom end of the fixed rod 34. A sliding rod 33 is fixedly mounted on the end of the hinge rod 32 adjacent to the fixed rod 34, which is used to drive the fixed rod 34 on the other side to move synchronously. The end of the sliding rod 33 away from the hinge rod 32 extends to the other side of the box body 1 and forms a rigid connection with the fixed rod 34 on the other side, realizing the linkage of the two fixed rods 34. A groove 13 corresponding to the sliding rod 33 is opened at the bottom of the box body 1. Through the rotational transmission of the hinge rod 32, the synchronous linkage of the sliding rod 33, and the guiding constraint of the groove 13, the stable flipping and storage of the luggage wheel 4 is realized, ensuring that the wheel sets on both sides move in unison, improving the convenience of operation and the reliability of the structure. A storage groove 14 is opened at the bottom of the box body 1 for storing the luggage wheel 4.
[0022] Please see Figure 1-5The locking structure includes a handle 2, a pin 21, and a spring 22. The handle 2 is rotatably connected to the side of the fixed block 31. When unlocking, the handle 2 is rotated 90 degrees. One end of the pin 21 is fixedly installed on the end of the handle 2, and the pin 21 is slidably installed on the inner wall of the fixed block 31, so that one end of the pin 21 extends out of the side of the fixed block 31 and inserts into the locking hole 12. The diameter of the other end of the pin 21 is larger than the diameter of the end adjacent to the handle 2, which is used to limit the pin 21. The spring 22 is sleeved on the outer wall of the pin 21, and the spring 22... 2. The two ends respectively abut against the inner wall of the fixing block 31 and the limiting protrusion of the pin rod 21. When the fixing block 31 moves to the top or bottom of the push-pull groove 11, under the elastic force of the spring 22, the pin rod 21 automatically extends into the corresponding locking hole 12, locking the fixing block 31 relative to the housing 1. When it is necessary to move the fixing block 31, the pin rod 21 is compressed by flipping the handle 2 and disengaged from the locking hole 12, releasing the locked state. At this time, pushing the fixing block 31 can drive the transmission plate 3 to slide along the inner wall of the housing 1, thereby realizing the linkage action of the subsequent components.
[0023] Please see Figure 1-5 Two sets of locking holes 12 are provided in the push-pull groove 11, and are located at the top and bottom of the push-pull groove 11 respectively. The two sets of locking holes 12 correspond to the initial position and the storage position of the fixing block 31 respectively, and are used for the unfolding and storage of the luggage wheel 4. By cooperating with the locking structure, the fixing block 31 can be stably locked in these two key positions, avoiding the fixing block from accidentally sliding due to external forces such as bumps and collisions, and ensuring the stability of the luggage wheel 4 in the use or storage state.
[0024] Please see Figure 1-5 There are four sets of fixing rods 34, which correspond to the four luggage wheels 4 respectively, forming a balanced four-point support structure. They are symmetrically distributed on both sides of the luggage body 1. A unified transmission system is formed through the linkage structure of the transmission plate 3, the hinge rod 32 and the sliding rod 33. The symmetrical distribution ensures that the force path on both sides is completely consistent, so that all fixing rods 34 can complete the flipping action synchronously, thereby avoiding messy storage or unbalanced support caused by the delay of action on one side.
[0025] Please see Figure 1-5 The hinge rod 32 is initially designed with an inclination. The initial inclination angle allows the vertical movement of the transmission plate 3 to be more efficiently converted into the flipping torque of the fixed rod 34. This ensures that a small operating force is required to drive the luggage wheels 4 to complete the storage or unfolding, thereby reducing the difficulty of operation. The hinge rods 32 are rotatably installed on both sides of the transmission plate 3 to synchronously drive the fixed rods 34. The hinge rods 32 on both sides of the transmission plate 3 are symmetrically distributed, which ensures that the force transmission path on both sides of the transmission plate 3 is completely consistent. This ensures that the flipping angle and speed of the fixed rods 34 and luggage wheels 4 on both sides are synchronized, avoiding uneven storage or unstable support caused by unilateral offset.
[0026] The working principle of this utility model is as follows: In the initial state, the handle 2 is in a locked state parallel to the side of the box 1. The end of the pin rod 21 is inserted into the locking hole 12 corresponding to the fixing block 31 under the natural tension of the spring 22, thus limiting the fixing block 31. At this time, the fixing block 31 is located at the top of the push-pull groove 11, and the four sets of fixing rods 34 are perpendicular to the bottom surface of the box 1. The luggage wheels 4 are exposed to support the box 1. When it is necessary to store the luggage wheel 4, rotate the handle 2 upwards by 90 degrees so that it is perpendicular to the side of the luggage body 1. The handle 2 drives the pin 21 to move upwards synchronously through the transmission relationship. The end of the pin 21 is dislodged from the locking hole 12. At the same time, the top of the pin 21 compresses the spring 22, causing the spring 22 to undergo compression deformation and store elastic potential energy. The limitation of the fixing block 31 is released, and it can move freely along the push-pull groove 11. After unlocking, push the fixing block 31 downward along the push-pull groove 11. During this process, the fixing block 31 drives the transmission plate 3 to move downward synchronously. The displacement of the transmission plate 3 forces the hinge rod 32 connected to it to rotate around the end of the transmission plate 3. Since the hinge rod 32 is initially slightly tilted, during its rotation, the end away from the transmission plate 3 generates an oblique displacement along the internal preset cavity. This displacement directly drives the two sets of fixing rods 34 on one side of the box 1 to change their posture. On the other hand, it is guided to slide along the preset slide groove 13 through the sliding rod 33 and transmitted to the other side of the box 1, driving the two sets of fixing rods 34 on the opposite side to move synchronously. Under the linkage, the four sets of fixing rods 34 gradually change from a state perpendicular to the bottom surface of the box 1 to a state parallel to the bottom surface of the box 1, thereby driving the luggage wheels 4 to retract into the storage groove 14 at the bottom of the box 1. When the fixing block 31 moves down to the bottom of the push-pull groove 11, the end of the pin 21 corresponds exactly to the position of the locking hole 12 at the bottom of the push-pull groove 11. At this time, the pin 21 is no longer subjected to pressure on the surface of the push-pull groove 11. The spring 22 releases the stored elastic potential energy, pushes the pin 21 to reset downward, and its end is re-engaged into the locking hole 12. At the same time, it drives the handle 2 to return to a state parallel to the side of the box body 1, thus completing the locking of the fixing block 31. At this time, the four sets of fixing rods 34 are completely parallel to the bottom surface of the box body 1, and the luggage wheels 4 are stored in the storage groove 14 to achieve hidden storage.
[0027] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A bag with wheels for easy flipping, comprising a bag body (1), characterized in that: The box (1) has a push-pull groove (11) on one side, and a locking hole (12) is provided in the push-pull groove (11). A transmission plate (3) is slidably installed on the inner wall of the box (1), and a fixing block (31) is fixedly installed on the top of the transmission plate (3). The fixing block (31) is slidably installed in the push-pull groove (11), and a locking structure is slidably installed in the fixing block (31) for cooperating with the locking hole (12). The bottom end of the transmission plate (3) is rotatably mounted with a hinge rod (32), and the end of the hinge rod (32) away from the transmission plate (3) is rotatably connected with a fixed rod (34), and the bottom end of the fixed rod (34) is mounted with a bag wheel (4). The end of the hinge rod (32) adjacent to the fixed rod (34) is fixedly mounted with a sliding rod (33), which is used to drive the fixed rod (34) on the other side to move synchronously. The bottom of the box body (1) is provided with a sliding groove (13) corresponding to the sliding rod (33), and the bottom of the box body (1) is provided with a storage groove (14) for storing the bag wheel (4).
2. The bag with convenient flipping wheels according to claim 1, characterized in that: The locking structure includes a handle (2), a pin (21), and a spring (22). The handle (2) is rotatably connected to the side of the fixed block (31). One end of the pin (21) is fixedly installed on the end of the handle (2) and the pin (21) is slidably installed on the inner wall of the fixed block (31). The diameter of the other end of the pin (21) is larger than the diameter of the end adjacent to the handle (2) for limiting the pin (21). The spring (22) is sleeved on the outer wall of the pin (21) and the two ends of the spring (22) abut against the inner wall of the fixed block (31) and the limiting protrusion of the pin (21) respectively.
3. The bag with convenient flipping wheels according to claim 1, characterized in that: The locking holes (12) are provided in two sets in the push-pull groove (11), and are located at the top and bottom of the push-pull groove (11) respectively.
4. The bag with convenient flipping wheels according to claim 1, characterized in that: The fixing rods (34) are provided in four sets and are symmetrically distributed on both sides of the box (1).
5. The bag with convenient flipping wheels according to claim 1, characterized in that: The hinge rod (32) is initially designed to be inclined, and hinge rods (32) are rotatably installed on both sides of the transmission plate (3) to synchronously drive the fixed rod (34), and the hinge rods (32) on both sides of the transmission plate (3) are symmetrically distributed.